Driving-belt



F. B. BROOK.

DRIVING BELT.

(No Model.)

No. 378,229. Patented Feb. 21, 1888.

8 (@WWW 7 2 w mw w mm. H H Hm Z2. 0- O a Qmi/M mowo NHED States Patent Orrrcn.

FENELON B. BROOK, OF WVASHINGTON, DISTRICT OF COLUMBIA, ASSIGNOR TO CHARLES A. SOHIEREN, OF BROOKLYN, NEW YORK.

DRIVlNG=BELT.

SPECIFICATION forming part of lZ-etters- Patent No. 378,229, dated February 21, 1888.

Application filed November 8, 1881. Serial No. 254,639. (No model.)

To all whom it may concern.-

Be it known that LFENELON B.BROGK,1 citizen of the United States, residing in 'Washington, in the District of Oolumbia,have invented certain new and useful Improvements in Machine-Belts; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use re the same, reference being had to the accompanying drawings, and to the letters and fignres of reference marked thereon, which form a part of this specification.

My invention relates to machine-belting.

The belt is composed of links and continuous strips of leather laid so that their edges form the surfaces of the belt, and are united by pins or screws.

Figure 1 is a plan View of a section of my 2o improved belting. Fig. 2 is a sectional edge view thereof showing the links and continuous strip in elevation. 3 is a detail view of the break-joint strip.

(4 represents aseries of leather links, of the form showinarranged to breakjoints with each other, and are united bya series of pins, 0.

Instead of links a the belt may be co1nposed of strips of leather.

For the purpose of making the belts conform to the shape of crowned pulleys I interpose one or more continuous strips of leather, I along the center of the belt, as shown in Fig. l, or at other points in the width of the belt, as may be deemed expedient.

3 5 The pins 0 are inserted alternately, or from opposite directions, through the continuous strip or strips b, and said pins extend therefrom to the outer edges of the belt, where they are headed.

The continuous breakjoint strip being secured to one side and the other alternately admits of a torsional flexure, which permits the belt to bend transversely of its length, and at the same time to accommodate itself to the curvature of the belt when running upon pulleys.

Other material than leather may be employed in the composition of the belt.

A continuous edge-laid leather break-j oint 5c strip possesses many advantages.

It is essential for the proper riveting of the pins in abelt of this class that the pins extending oppositely from the break-joint strip toward the outer edges of the belt be in alignment, as shown, so that they maybe properly 5 supported in the act of riveting the pins. If they were not in alignment, there would be such a give or spring to the pins as would preclude their being properly headed down. In belts having link break-joints this feature of alignment is not essential, because in making these belts the breakjoint links are swung at right angles to the belt and are independently supported.

In some instances I find that by employing a continuous strip, b, along each edge of the belt I secure improved results, the belt hugging the pulley and running truer than where the edge strips are absent. I may also notch the continuous strips Z) and b, in order to secure increased flexibility, as at cl, Fig. 3 (dotted lines.)

I claim.

I. In a drivingbelt, an edge-laid continuous break-joint strip provided with a series of holes, in combination with a series of pins headed in said strip andpassing therethrongh in opposite directions.

2. A driving-belt composed of a series of links adapted to break joint with each other, in combination with a continuous edge-laid break-joint strip, and a series of pins headed in the strip and passing therethrongh alternately or in opposite direction and through said links. 8 5

3. A drivingbelt composed of a series of links, in combination with a continuous edgelaid break-joint strip, a series of pins secured in said strip and extending in opposite directions, and another series of pins passing through the belt in alignment with the first series.

4.. A driving-belt composed of a series of links adapted to break joint with one another, in combination with one or more edge-laid 5 break-joint strips, and a series of pins uniting the links and strip or strips, whereby both transverse and longitudinal flexnre is imparted to the belt, substantially as set forth.

In testimony whereof I affix my signature in [CO presence of two witnesses.

F. B. BROOK.

Witnesses:

W. A. BARTLETT, JULIUS Serene. 

